Backported from X.org:

 commit f797c96845a3fab37cda6839ebecf9ac5401fd6e
 Author: Aaron Plattner <aplattner@nvidia.com>
 Date:   Thu Nov 15 12:12:02 2007 -0800

    Save pixmap allocation hints into the PixmapRec.
Backported-to-NX-by: Mike Gabriel <mike.gabriel@das-netzwerkteam.de>